361742225 has 24 divisors (see below), whose sum is σ = 492202872. Its totient is φ = 262080000.

The previous prime is 361742219. The next prime is 361742233. The reversal of 361742225 is 522247163.

It can be written as a sum of positive squares in 12 ways, for example, as 174134416 + 187607809 = 13196^2 + 13697^2 .

It is not a de Polignac number, because 361742225 - 2⁴ = 361742209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361742191 and 361742200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6725 + ... + 27725.

It is an arithmetic number, because the mean of its divisors is an integer number (20508453).

Almost surely, 2^361742225 is an apocalyptic number.

It is an amenable number.

361742225 is a deficient number, since it is larger than the sum of its proper divisors (130460647).

361742225 is a wasteful number, since it uses less digits than its factorization.

361742225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21077 (or 21072 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 361742225 is about 19019.5222074583. The cubic root of 361742225 is about 712.5243902598.

Adding to 361742225 its reverse (522247163), we get a palindrome (883989388).

The spelling of 361742225 in words is "three hundred sixty-one million, seven hundred forty-two thousand, two hundred twenty-five".